8,236 terms
Photonics Dictionary
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CCDcharge-coupled device
CCD cameraA CCD camera, or charge-coupled device camera, is a type of digital camera that utilizes a CCD image sensor to capture and record images. CCD cameras are widely used in various applications,...
CCD image sensorA CCD image sensor, or charge-coupled device image sensor, is a type of electronic device used to convert optical images into electronic signals. It is a key component in digital cameras, camcorders,...
CCD -> charge-coupled deviceA charge-coupled device (CCD) is a type of electronic image sensor used in various imaging devices, including digital cameras, camcorders, and scientific instruments. It consists of an integrated...
CCDSCenter for Commercial Development of Space
CCFMcryogenic continuous-film memory
CCIRComité Consultatif International des Radiocommunications
CCITTComité Consultatif International Telegraphique et Telephonique
CCLcontrolled commodities list
CCOcurrent-controlled oscillation
CCPcomputer-controlled polisher
CCPDcharge-coupled photodiode array
CCTcorrelated color temperature
CCTVclosed-circuit television
CCWcounterclockwise
CD-ROM (compact disc read-only memory)An adaptation by Philips and Sony of their audio compact disc technology for optical disc data storage and retrieval. Current capacity of a disc is 0.5 to 0.6 gigabytes of information.
CD-ROMcompact disc read-only memory
CD/Icompact disc/interactive
CD/IA technical specification for a consumer product drawn up by Sony and Philips. CD/I combines audio, video and text recorded as interleaved channels on a disc similar to an audio compact disc. The...
CDEMcontinuous dynode electron multiplier
CDMcapacitive discharge mode
CDRHCenter for Devices and Radiological Health
CDRMcompensating digital readout multiplexer
CDScinema digital sound; conjugate direction search; correlated double sampling
CDVcompressed digital video
CEIcomputer extended instruction
cell1. A single unit in a device for changing radiant energy to electrical energy or for controlling current flow in a circuit. 2. A single unit in a device whose resistance varies with radiant energy....
cell adhesionCell adhesion refers to the process by which cells interact and attach to neighboring cells or to the extracellular matrix (ECM), a network of proteins and other molecules surrounding cells. This...
cell migrationCell migration refers to the process by which cells move from one location to another within tissues or across biological barriers. This fundamental biological process is essential during various...
Celor lens -> Dogmar/Aviar lensA general-purpose lens, also known as the Celor lens, used widely in photography and commercial processing; it has the form of a triplet with a split flint element.
CEMchannel electron multiplier
cementAn adhesive used for bonding optical elements or for holding devices.
cemented doublet -> doublet1. A compound lens consisting of two elements. If there is an air space between the elements it is called an "air-spaced doublet.'' If the inner surfaces are cemented together, it is called a...
cementing surfaceThe surface of an element of a compound lens that will produce the cemented interface. The curves of this interface are called inside curves. To facilitate cementing, the two inside curves should...
center of curvatureThe center of the sphere of which the surface of a lens or mirror forms a portion. Each curved surface of a lens has a center of curvature; the surfaces may be convex or concave.
center of perspectiveThat viewpoint at which the angular subtenses of points in the picture are identical to angular subtenses of the original points in the scene, at the camera lens.
center thicknessThe lens thickness measured at the optical axis.
center, optical -> optical centerThe point on the optical axis of a lens that is the image of the nodal points. For any bundle of rays passing through the optical center of a lens, the incident and emergent rays through this point...
centerburstIn an interferogram, an intense portion of the recording that corresponds in size to the amount of infrared radiation incident on the detector.
centered curveThe surface curvature designed to reduce the marginal error found in the periphery of a spectacle lens.
centered lens systemA lens system in which the centers of curvature of all surfaces fall on a common axis.
centering1. Mounting a lens or mirror so that its optical axis is coincident with the optical or mechanical axes of other portions of the system. 2. The machining (edging) of the outside diameter of a lens...
centiIn the SI system, prefix meaning one hundredth, 10-2.
central obstructionIn a reflecting telescope, the obstruction of the primary mirror by a secondary mirror which blocks a small amount of the light reflected by the primary mirror and introduces additional diffraction.
central processing unitThe computer module whose circuitry interprets instructions and guides the actions of the peripherals. Also known as the mainframe.
centrationCentration is the precise alignment of the optical center of a lens or optical element with its mechanical center or the axis of the mounting assembly. It is crucial for ensuring that the optical...
centrifugeA rotating chamber that can be spun at different speeds to generate great radial forces used to simulate different gravity loads.
centrifuge microscopeA microscope that can be used to observe and magnify microscope specimens while they are being centrifuged. The objective rotates near the periphery of the centrifuge head, and the ocular is...
centroid -> image centroidOften referred to as the geometric center of a given image or image plane, the centroid of an image is a fixed point located at the intersection of all of the hyperplanes of symmetry within that...
CERcontactless electroreflectance
Photonics Dictionary